01
Visible assumptions
Set contributions, fees, inflation and time as the starting points for a scenario.
A Lambda product
ETF Compass for considered planning.
ETF Compass is a Lambda Software product for exploring long-term investment scenarios with clear limitations and educational context.
An educational tool for long-term scenarios
Clearer planning
Explore assumptions before a decision.
The tool makes scenarios easier to inspect without promises or recommendations.
02
Compare scenarios
See how different assumptions change an illustrative projection.
03
Educational perspective
Use the result as a starting point for further research and reliable sources.
What the tool does
ETF Compass helps you enter assumptions, compare scenarios and understand how contributions, fees, inflation and time may affect an illustrative projection.
What the tool does not do
It is an educational planning tool, not personalised investment, tax or legal advice. Projections are not promises of returns, and decisions should be checked against your circumstances and reliable sources.
Product evidence
Inspect how the illustration is made.
Lambda publishes the model behaviour, data boundaries and validation behind the product without turning technical precision into a market promise.
01
Traceable calculation
We follow deposits, costs, taxes, stress and inflation through isolated checkpoints and boundary tests.
How we validate a projection02
Local by default
The calculator works without a mandatory account; local saving and optional cloud sync remain separate choices.
Why calculations stay local03
Visible limitations
The methodology states what the model includes, what it leaves out and where current official information is still required.
Read the methodologyETF Compass resources
Continue on ETF Compass.
The application and standalone educational guides remain on the separate ETF Compass site; Lambda notes document product development and accountability.
ETF Compass homeAbout ETF CompassETF risks a projection cannot removeFees, taxes, and currencyETF Compass privacy
Ownership and review
About Lambda SoftwareETF Compass is published and maintained by Lambda Software. This information and the linked engineering notes were editorially reviewed on 30 August 2026.